Right here’s a dual attribute in the #ComponentsCloseUp collection, number 274 and also 275!
I prepare to do a follow-up video clip in the future after I’ve invested some even more time with these as well as various other Sylvania chips that I have actually considering that gotten that are in fact in the information publication. Those ought to be simple to identify what their features are, as well as probably I’ll find out something that I can relate to these chips.
Both of these are old Sylvania Integrated Circuits that go back most likely to the very early 1970s or late 1960s, which I would certainly approximate based upon the motherboard they were discovered on.
On this certain board there are a total amount of 3 gold ceramic dips. 2 of them have the component number 300566400, as well as one looked like it can be 300566800, however the numbers were rather discolored as well as tough to review. Neither of these numbers produced any type of info browsing online as to what they were, so I determined to open them up.
Both of these components show up to be from the SUHL (Sylvania Universal High-Level Logic) lines of incorporated circuits. I tried to turn around designer the illustration of the 220 based on some layouts that I discovered in an old Sylvania information publication, however it does not appear to match anything provided there.
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Resources utilized in the video clip:
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Bitsavers.org PDF web link:
http://www.bitsavers.org/components/sylvania/SM2927_Sylvania_Universal_High_Level_Logic_May66.pdf
Both of these components seem from the SUHL (Sylvania Universal High-Level Logic) lines of incorporated circuits. I tried to turn around designer the illustration of the 220 based upon some representations that I located in an old Sylvania information publication, however it does not appear to match anything noted there. I’m quite positive that my pinout is appropriate.
Inside the 300566800 chip is a pink silicon chip with the number 220 on it.
Inside the 300566400 chip is an eco-friendly silicon chip with the number 286-9 on it.
On this certain board there are an overall of 3 gold ceramic dips. 2 of them have the component number 300566400, and also one appeared like maybe 300566800, however the numbers were quite discolored and also tough to review. Neither of these numbers produced any kind of details looking online regarding what they were, so I made a decision to open them up.
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Archive.org Document View web link:
https://archive.org/details/TNM_Sylvania_integrated_circuits_SUHL_-_General_T_20171201_0017/page/n21/mode/2up
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If you have any kind of understandings or understanding regarding what these circuits right here may be, please do not be reluctant to comment it down below, or do not hesitate to email me straight. Many thanks ahead of time!
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